Merge branch 'depends/rmk/memory_h' into next/fixes
[linux-2.6.git] / arch / arm / mach-omap1 / board-perseus2.c
1 /*
2  * linux/arch/arm/mach-omap1/board-perseus2.c
3  *
4  * Modified from board-generic.c
5  *
6  * Original OMAP730 support by Jean Pihet <j-pihet@ti.com>
7  * Updated for 2.6 by Kevin Hilman <kjh@hilman.org>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  */
13 #include <linux/gpio.h>
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
17 #include <linux/delay.h>
18 #include <linux/mtd/mtd.h>
19 #include <linux/mtd/nand.h>
20 #include <linux/mtd/partitions.h>
21 #include <linux/mtd/physmap.h>
22 #include <linux/input.h>
23 #include <linux/smc91x.h>
24
25 #include <mach/hardware.h>
26 #include <asm/mach-types.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/map.h>
29
30 #include <plat/tc.h>
31 #include <plat/mux.h>
32 #include <plat/fpga.h>
33 #include <plat/flash.h>
34 #include <plat/keypad.h>
35 #include <plat/common.h>
36 #include <plat/board.h>
37
38 static const unsigned int p2_keymap[] = {
39         KEY(0, 0, KEY_UP),
40         KEY(1, 0, KEY_RIGHT),
41         KEY(2, 0, KEY_LEFT),
42         KEY(3, 0, KEY_DOWN),
43         KEY(4, 0, KEY_ENTER),
44         KEY(0, 1, KEY_F10),
45         KEY(1, 1, KEY_SEND),
46         KEY(2, 1, KEY_END),
47         KEY(3, 1, KEY_VOLUMEDOWN),
48         KEY(4, 1, KEY_VOLUMEUP),
49         KEY(5, 1, KEY_RECORD),
50         KEY(0, 2, KEY_F9),
51         KEY(1, 2, KEY_3),
52         KEY(2, 2, KEY_6),
53         KEY(3, 2, KEY_9),
54         KEY(4, 2, KEY_KPDOT),
55         KEY(0, 3, KEY_BACK),
56         KEY(1, 3, KEY_2),
57         KEY(2, 3, KEY_5),
58         KEY(3, 3, KEY_8),
59         KEY(4, 3, KEY_0),
60         KEY(5, 3, KEY_KPSLASH),
61         KEY(0, 4, KEY_HOME),
62         KEY(1, 4, KEY_1),
63         KEY(2, 4, KEY_4),
64         KEY(3, 4, KEY_7),
65         KEY(4, 4, KEY_KPASTERISK),
66         KEY(5, 4, KEY_POWER),
67 };
68
69 static struct smc91x_platdata smc91x_info = {
70         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
71         .leda   = RPC_LED_100_10,
72         .ledb   = RPC_LED_TX_RX,
73 };
74
75 static struct resource smc91x_resources[] = {
76         [0] = {
77                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
78                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
79                 .flags  = IORESOURCE_MEM,
80         },
81         [1] = {
82                 .start  = INT_7XX_MPU_EXT_NIRQ,
83                 .end    = 0,
84                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
85         },
86 };
87
88 static struct mtd_partition nor_partitions[] = {
89         /* bootloader (U-Boot, etc) in first sector */
90         {
91               .name             = "bootloader",
92               .offset           = 0,
93               .size             = SZ_128K,
94               .mask_flags       = MTD_WRITEABLE, /* force read-only */
95         },
96         /* bootloader params in the next sector */
97         {
98               .name             = "params",
99               .offset           = MTDPART_OFS_APPEND,
100               .size             = SZ_128K,
101               .mask_flags       = 0,
102         },
103         /* kernel */
104         {
105               .name             = "kernel",
106               .offset           = MTDPART_OFS_APPEND,
107               .size             = SZ_2M,
108               .mask_flags       = 0
109         },
110         /* rest of flash is a file system */
111         {
112               .name             = "rootfs",
113               .offset           = MTDPART_OFS_APPEND,
114               .size             = MTDPART_SIZ_FULL,
115               .mask_flags       = 0
116         },
117 };
118
119 static struct physmap_flash_data nor_data = {
120         .width          = 2,
121         .set_vpp        = omap1_set_vpp,
122         .parts          = nor_partitions,
123         .nr_parts       = ARRAY_SIZE(nor_partitions),
124 };
125
126 static struct resource nor_resource = {
127         .start          = OMAP_CS0_PHYS,
128         .end            = OMAP_CS0_PHYS + SZ_32M - 1,
129         .flags          = IORESOURCE_MEM,
130 };
131
132 static struct platform_device nor_device = {
133         .name           = "physmap-flash",
134         .id             = 0,
135         .dev            = {
136                 .platform_data  = &nor_data,
137         },
138         .num_resources  = 1,
139         .resource       = &nor_resource,
140 };
141
142 static void nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
143 {
144         struct nand_chip *this = mtd->priv;
145         unsigned long mask;
146
147         if (cmd == NAND_CMD_NONE)
148                 return;
149
150         mask = (ctrl & NAND_CLE) ? 0x02 : 0;
151         if (ctrl & NAND_ALE)
152                 mask |= 0x04;
153         writeb(cmd, (unsigned long)this->IO_ADDR_W | mask);
154 }
155
156 #define P2_NAND_RB_GPIO_PIN     62
157
158 static int nand_dev_ready(struct mtd_info *mtd)
159 {
160         return gpio_get_value(P2_NAND_RB_GPIO_PIN);
161 }
162
163 static const char *part_probes[] = { "cmdlinepart", NULL };
164
165 static struct platform_nand_data nand_data = {
166         .chip   = {
167                 .nr_chips               = 1,
168                 .chip_offset            = 0,
169                 .options                = NAND_SAMSUNG_LP_OPTIONS,
170                 .part_probe_types       = part_probes,
171         },
172         .ctrl   = {
173                 .cmd_ctrl       = nand_cmd_ctl,
174                 .dev_ready      = nand_dev_ready,
175         },
176 };
177
178 static struct resource nand_resource = {
179         .start          = OMAP_CS3_PHYS,
180         .end            = OMAP_CS3_PHYS + SZ_4K - 1,
181         .flags          = IORESOURCE_MEM,
182 };
183
184 static struct platform_device nand_device = {
185         .name           = "gen_nand",
186         .id             = 0,
187         .dev            = {
188                 .platform_data  = &nand_data,
189         },
190         .num_resources  = 1,
191         .resource       = &nand_resource,
192 };
193
194 static struct platform_device smc91x_device = {
195         .name           = "smc91x",
196         .id             = 0,
197         .dev    = {
198                 .platform_data  = &smc91x_info,
199         },
200         .num_resources  = ARRAY_SIZE(smc91x_resources),
201         .resource       = smc91x_resources,
202 };
203
204 static struct resource kp_resources[] = {
205         [0] = {
206                 .start  = INT_7XX_MPUIO_KEYPAD,
207                 .end    = INT_7XX_MPUIO_KEYPAD,
208                 .flags  = IORESOURCE_IRQ,
209         },
210 };
211
212 static const struct matrix_keymap_data p2_keymap_data = {
213         .keymap         = p2_keymap,
214         .keymap_size    = ARRAY_SIZE(p2_keymap),
215 };
216
217 static struct omap_kp_platform_data kp_data = {
218         .rows           = 8,
219         .cols           = 8,
220         .keymap_data    = &p2_keymap_data,
221         .delay          = 4,
222         .dbounce        = true,
223 };
224
225 static struct platform_device kp_device = {
226         .name           = "omap-keypad",
227         .id             = -1,
228         .dev            = {
229                 .platform_data = &kp_data,
230         },
231         .num_resources  = ARRAY_SIZE(kp_resources),
232         .resource       = kp_resources,
233 };
234
235 static struct platform_device lcd_device = {
236         .name           = "lcd_p2",
237         .id             = -1,
238 };
239
240 static struct platform_device *devices[] __initdata = {
241         &nor_device,
242         &nand_device,
243         &smc91x_device,
244         &kp_device,
245         &lcd_device,
246 };
247
248 static struct omap_lcd_config perseus2_lcd_config __initdata = {
249         .ctrl_name      = "internal",
250 };
251
252 static struct omap_board_config_kernel perseus2_config[] __initdata = {
253         { OMAP_TAG_LCD,         &perseus2_lcd_config },
254 };
255
256 static void __init perseus2_init_smc91x(void)
257 {
258         fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
259         mdelay(50);
260         fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
261                    H2P2_DBG_FPGA_LAN_RESET);
262         mdelay(50);
263 }
264
265 static void __init omap_perseus2_init(void)
266 {
267         perseus2_init_smc91x();
268
269         if (gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0)
270                 BUG();
271         gpio_direction_input(P2_NAND_RB_GPIO_PIN);
272
273         omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
274         omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
275
276         /* Mux pins for keypad */
277         omap_cfg_reg(E2_7XX_KBR0);
278         omap_cfg_reg(J7_7XX_KBR1);
279         omap_cfg_reg(E1_7XX_KBR2);
280         omap_cfg_reg(F3_7XX_KBR3);
281         omap_cfg_reg(D2_7XX_KBR4);
282         omap_cfg_reg(C2_7XX_KBC0);
283         omap_cfg_reg(D3_7XX_KBC1);
284         omap_cfg_reg(E4_7XX_KBC2);
285         omap_cfg_reg(F4_7XX_KBC3);
286         omap_cfg_reg(E3_7XX_KBC4);
287
288         platform_add_devices(devices, ARRAY_SIZE(devices));
289
290         omap_board_config = perseus2_config;
291         omap_board_config_size = ARRAY_SIZE(perseus2_config);
292         omap_serial_init();
293         omap_register_i2c_bus(1, 100, NULL, 0);
294 }
295
296 static void __init omap_perseus2_init_irq(void)
297 {
298         omap1_init_common_hw();
299         omap1_init_irq();
300 }
301 /* Only FPGA needs to be mapped here. All others are done with ioremap */
302 static struct map_desc omap_perseus2_io_desc[] __initdata = {
303         {
304                 .virtual        = H2P2_DBG_FPGA_BASE,
305                 .pfn            = __phys_to_pfn(H2P2_DBG_FPGA_START),
306                 .length         = H2P2_DBG_FPGA_SIZE,
307                 .type           = MT_DEVICE
308         }
309 };
310
311 static void __init omap_perseus2_map_io(void)
312 {
313         omap1_map_common_io();
314         iotable_init(omap_perseus2_io_desc,
315                      ARRAY_SIZE(omap_perseus2_io_desc));
316
317         /* Early, board-dependent init */
318
319         /*
320          * Hold GSM Reset until needed
321          */
322         omap_writew(omap_readw(OMAP7XX_DSP_M_CTL) & ~1, OMAP7XX_DSP_M_CTL);
323
324         /*
325          * UARTs -> done automagically by 8250 driver
326          */
327
328         /*
329          * CSx timings, GPIO Mux ... setup
330          */
331
332         /* Flash: CS0 timings setup */
333         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_0);
334         omap_writel(0x00000088, OMAP7XX_FLASH_ACFG_0);
335
336         /*
337          * Ethernet support through the debug board
338          * CS1 timings setup
339          */
340         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_1);
341         omap_writel(0x00000000, OMAP7XX_FLASH_ACFG_1);
342
343         /*
344          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
345          * It is used as the Ethernet controller interrupt
346          */
347         omap_writel(omap_readl(OMAP7XX_IO_CONF_9) & 0x1FFFFFFF, OMAP7XX_IO_CONF_9);
348 }
349
350 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
351         /* Maintainer: Kevin Hilman <kjh@hilman.org> */
352         .atag_offset    = 0x100,
353         .map_io         = omap_perseus2_map_io,
354         .reserve        = omap_reserve,
355         .init_irq       = omap_perseus2_init_irq,
356         .init_machine   = omap_perseus2_init,
357         .timer          = &omap1_timer,
358 MACHINE_END